Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Deflection method
Magnetic
Focusing method
Electrostatic
Specialized - Cathode Ray ·CathodeRay
5WP11
Five-inch P11 cathode-ray instrument tube for oscillographic and measurement display, with manufacturer-specified electrostatic focusing, deflection, and beam-control characteristics.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 12C
- Socket code
- DUODECAL11
- Base pins
- 7
- Nominal heater
- 6.3 V / 20 mA
Description
Five-inch electrostatic-focus/magnetic-deflection CRT; P11 blue, short persistence.
Socket description
Duodecal 11-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 12C
- Socket code
- DUODECAL11
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 20 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
12C - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 27000 V
CRT maximum accelerating/anode/ultor voltage is promoted to MaxPlateVoltage; additional electrode ratings, capacitances, operating conditions, deflection/focus and optical data are preserved as parameters.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
FocusingMethod
Electrostatic
DeflectionMethod
Magnetic
Deflection Angle
50 degree
Phosphor
P11 blue, short persistence
MinimumUsefulScreenDiameter
4.25 in
Cathode To All Capacitance
5 pF
Grid1ToAllCapacitanceMaximum
7.5 pF
ExternalNeckCoatingToAnode2CapacitanceMinimum
100 pF
ExternalNeckCoatingToAnode2CapacitanceMaximum
500 pF
Other
Anode2VoltageMaximum
30000 V
Anode1VoltageMaximum
6600 V
Grid2VoltageMaximum
385 V
Grid1NegativeBiasMagnitudeMaximum
165 V
Grid1PositiveBiasMaximum
0 V
Grid1PositivePeakVoltageMaximum
2 V
HeaterCathodeVoltageMaximum
450 V
Warmup<=15s;HeaterNegative
HeaterCathodeVoltageMaximum
140 V
AfterWarmup;HeaterNegative
HeaterCathodeVoltageMaximum
140 V
HeaterPositive
Anode2Voltage
27000 V
Anode1VoltageForFocus
4200 to 5400 V
Grid2 Voltage
200 V
Grid1VoltageForCutoff
-42 to -98 V
Grid1CircuitResistanceMaximum
1.5 Mohm
Anode2Current
20 uA
Anode1CurrentMaximum
25 uA
Data set 03
1971 RCA HB3 Binder 1 of 7
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Maximum anode 1 voltage
6000 V
Maximum grid 2 voltage
350 V
Maximum grid 1 negative-bias voltage
150 V
NegativeBias
Maximum grid 1 positive-bias voltage
0 V
PositiveBias
Maximum grid 1 positive-peak voltage
2 V
PositivePeak
Peak heater-cathode voltage
410 V
HeaterNegativeWarmup
Peak heater-cathode voltage
125 V
HeaterNegativeAfterWarmup
Peak heater-cathode voltage
125 V
HeaterPositive
Typical anode 2 voltage
27000 V
TypicalOperation
Maximum accelerating/anode voltage
27000 V
ANODE-No.2 VOLTAGE
27000 V
Maximum
Anode-No.2 Voltage'
27000 V
Grid-No.l Voltage for Visual. Cutoff
-42 to -98 V
Grid-No.2 Current Range
-15 to 15 uA
Grid-No.l-Circuit Resistance
1.5 MΩ
Maximum
Capacitance
Grid 1 to all other electrodes capacitance
7.5 pF
Approximate
Cathode to all other electrodes capacitance
5 pF
Approximate
External conductive coating to anode 2 capacitance maximum
500 pF
Maximum
External conductive coating to anode 2 capacitance minimum
100 pF
Minimum
Characteristic
Current
6 A